Using two rigs like Muse/Rage

Until now I've been running my three distortion pedals (Woolly Mammoth, Big Muff, Prunes n Custard) through a Boss LS-2 and mixing the effects signal with a clean signal, which then goes into a Sansamp RBI preamp and a Mesa Bass 400+. It works great, but it's often difficult to hear the effects in the mix when the whole band's playing, I think because it's all getting crammed into the same rig and it's mainly the lows that cut through the mix.

I read in some bass mags about how Chris from Muse and Tim from Rage ran their setups, with a main rig for clean stuff, and a combo for effects - and I'm quite intrigued by the possibilities with this. Does anyone else run a similar set up?

I was thinking of getting a Marshall B65 and sitting it on top of my rig, run a separate clean signal from the RBI, thru the distortions and then into the B65.
Problem is I really like the combined signal the LS-2 gives me at the moment, it's just not cutting it live.

I ran an ampeg 8 - 10 cabinet with my svt 4pro for my main rig that ran clean, and used a few effects (stuff like a small stone, a bassballs etc...) and had an old sovtek mig 50 guitar head that I got really cheap running through a hartke cabinet that i had swapped the blown hartke fifteen out for an eminence kappa pro 15 for distortion and some effects made for guitar that work better without all the low end. I grabbed a cheap electroharmonix "switchblade" pedal off ebay to switch between the two. It sounded great, and the kappa 15 was plenty loud enough, and handled a range of tone decently. The only problem was that it was just too much foot work to remember--I got myself into trouble quite a few times not remembering to switch back and forth and so on. Also, that was just way too much gear to haul around for one instrument.